Bottle Cap with Additive Supply Structure

ABSTRACT

A bottle cap with additive supply structure, comprising a bottle cap body and a storage cap; the bottle cap body comprises a first top and a first outer skirt part; the storage cap comprises a second top and a second outer skirt part, the second top, the second external skirt and a crackable part form a sealed storage space. In the invention, the additives are placed in the storage cap, the storage cap is mounted in the mounting groove, sealing performance of the storage space is better, and the additives can be prevented from being affected by damp and going bad. The bottle cap body is provided with the crackable part, the crackable part can be opened only by knocking on the storage cap downwards during use, making the additives fall into a bottle body so as to be mixed with bottled contents.

TECHNICAL FIELD OF THE INVENTION

The invention relates to a bottle cap, specifically a bottle cap with additive supply structure.

BACKGROUND OF THE INVENTION

The majority of bottles sold on the current market can accommodate only one kind of substance in each one. In order to provide a variety of tastes for users, sometimes different substances must be mixed to prepare a mixture, for example, coffee drinks can be mixed with sugar or cream in the bottle cap; the additive separation plays an important role in protection of some ingredients to prevent deterioration and keep the taste of some food, and can also greatly improve the overall shelf life. Similarly, it can be applied to drugs and chemicals.

In order to mix two substances, users must purchase two bottles to accommodate two substances, especially when the substances must be mixed in strict proportion, users must use a measuring implement to prepare the mixture; if there is no such measuring implement, it is hard to keep the correct proportion of the mixture, making the mixture incorrectly, even unable to use.

Therefore, in order to overcome the above problems, a bottle cap with additive separate from the bottled material is put forward. The majority of existing bottle caps with additive are complex in structure, high in cost and inconvenient in operation; after adding the additives to the bottle, the sealing performance of the whole bottle is compromised; the sealing piece for packaging the additives may fall into the bottle.

For the majority of bottle caps with additive, the additives and the bottled material are separated through closing two block pieces, the airtight integrity is poor, the bottled material may permeate into the additive after lengthy inversion.

CONTENT OF THE INVENTION

In order to overcome the disadvantages of complex structure, high cost, inconvenient operation, poor airtightness and sealing piece easy to fall into the bottle, the invention provides a bottle cap with additive supply structure, which has the advantages of simple structure, low cost, easy operation and crackable part unable to fall into the bottle.

In order to solve the above technical problems, the invention adopts the following technical scheme:

The bottle cap with additive supply structure comprises a bottle cap body and a storage cap connected to that bottle cap body; the bottle cap body comprises the first top and the first outer skirt part arranged at the lower end of the first top; a mounting groove used for installing the storage cap is arranged at the lower end of the first top and comprises a grooved wall arranged at the lower end of the first top and a crackable part arranged at the bottom of the grooved wall, and the crackable part and the grooved wall are structurally integral; the storage cap comprises the second top and the second outer skirt part arranged at the lower end of the second top, and is installed in the mounting groove; the second top, the second outer skirt part and the crackable part form a sealed storage space.

Preferably, the crackable part comprises a middle part and an edge part close to the groove wall, and the thickness of the edge part is smaller than that of the middle part.

Preferably, the thickness of the edge part is between 0.01-0.5 mm.

Preferably, the edge part is provided with a thickening part which is an integral structure with the edge part and the middle part.

Preferably, an annular groove is arranged in the grooved wall, the second outer skirt part is provided with an annular boss at the position corresponding to the annular groove, and the storage space is clamped in the annular groove to seal through the annular boss.

Preferably, the first top is provided with a step hole of which the diameter is larger than that of the mounting groove; the mounting groove is communicated with the step hole, and the periphery of the second top is provided with an annular flange fit to the step hole.

In the invention, the additives are stored in the storage cap installed in the mounting groove; the inside of the groove wall is fit to the periphery of the second outer skirt part, and the annular boss is clamped into the annular groove so as to seal the storage cap to avoid contamination of the additives; the bottle body is provided with the crackable part which can be opened by knocking the storage cap downward to permit the additives to fall into the bottle and mix with the bottled material. The bottle cap in the invention has the advantages of simple structure, low cost and easy operation; the integral structure does not leak the bottled material either before mixing or after mixing, with good airtight integrity; the edge part is provided with a thickening part which is an integrated structure with the edge part and the middle part, and the thickening part shall have such thickness that it will not be cracked by the acting force of the second outer skirt part so as to ensure that the crackable part will not fall into the bottle after opening; the storage space is separated from the bottle inside through the crackable part completely, in that the storage space is closed completely, which prevents the bottled material from permeating into the storage cap y to affect the storage of the additive under external forces or inversion in the transport process of the bottle; the crackable part. The crackable part and the grooved wall are an integrated structure achieving the complete sealing of the storage space; the additive and the bottled material are sealed and stored separately, preventing them from reacting and prolonging their shelf lives. The same bottle has a body and storage cap, convenient for users to adjust color, taste, fragrance and flavor of the bottled materials, and the applicability is wide.

DRAWINGS

FIG. 1 is a structural diagram of the bottle cap body in the invention.

FIG. 2 is a structural diagram of FIG. 1 from another point of view.

FIG. 3 is a sectional view of the bottle cap body.

FIG. 4 is a structural diagram of the storage cap.

FIG. 5 is a sectional view of the storage cap.

FIG. 6 is a structural diagram of the invention.

FIG. 7 is a structural diagram of FIG. 6 from another point of view.

FIG. 8 is a sectional view of the invention.

FIG. 9 is an enlarged view of the part A in FIG. 8.

FIG. 10 is a structural diagram of the crackable part.

The names of parts marked with numbers in the figures are shown as follows: 1—bottle cap body, 2—storage cap, 3—first top, 4—second top, 5—first outer skirt part , 6—second outer skirt part , 7—step hole, 8—mounting groove, 9—grooved wall, 10—crackable part, 11—middle part, 12—edge part, 13—thickening part, 14—annular flange, 15—storage space, 16—knocking part, 17—internal thread, 18—cavity, 19—annular groove, 20—annular boss.

EMBODIMENTS OF THE INVENTION

The following is a detailed description of the invention by illustrating the attached figures and the embodiments:

Embodiment 1

In FIG. 1 to FIG. 10, the bottle cap with additive supply structure comprises the bottle cap body 1 and the storage cap 2 connected to the bottle cap body 1 which comprises the first top 3 and the first outer skirt part 5 structurally integrated with the first top 3; the first outer skirt part 5 is arranged at the lower end of the first top 3 which is provided with the step hole 7; the lower end of the first top 3 is provided with the mounting groove 8 for installing the storage cap 2, the mounting groove 8 is enclosed by the first outer skirt part 5, and the diameter of the step hole 7 is larger than that of the mounting groove 8; therefore, the storage cap 2 can be clamped into the mounting groove 8 by pressing so as to seal the upper end of the bottle cap body 1, ensuring that the storage cap 2 cannot fall into the bottle and to improve the airtightness of the whole bottle after the additives are added.

The mounting groove 8 is commensurate with the step hole 7 and comprises the grooved wall 9 arranged at the lower end of the first top 3 and the crackable part 10 arranged at the bottom of the grooved wall and used for sealing the bottom of the mounting groove 8; the grooved wall 9 and the first top 3 are an integrated structure, as are the crackable part 10 and the groove wall 9; the crackable part 10 comprises the middle part 11 and the edge part 12 close to the groove wall 9, the thickness of the edge part 12 is smaller than that of the middle part 11 and is between 0.01-0.5 mm, which can ensure that the crackable part 10 is able to be broken by knocking the second outer skirt part 6. The edge part 12 is provided with the thickening part 13 which is an integrated structure with the edge part 12 and the middle part 11.

The storage cap 2 comprises the second top 4 and the second outer skirt part 6 is an all-in-one stricture with the second top 4, the second outer skirt part 6 is arranged at the lower end of the second top 4 of which the periphery is provided with the annular flange 14 fit to the step hole 7 and able to seal the upper end of the bottle cap body 1.

The storage cap 2 is installed in the mounting groove 8. During installation, the distance between the bottom of the storage cap 2 and the upper end of the middle part is between 1-3 mm, the distance between the bottom of the step hole 7 and the annular flange 14 is between 4-8 mm, the sum of the thickness of the thickening part 13 and that of the edge part 12 is between 3-4 mm, and the thickness of the middle part 11 is between 3-4 mm.

The second outer skirt part 6 is closely fit to the grooved wall 9, the second top 4, the second outer skirt part 6 and the crackable part 10 form a sealed storage space 15, the annular groove 19 is arranged in the groove wall 9, the second outer skirt part 6 is provided with an annular boss 20 at the position corresponding to the annular groove 19, and the storage space 15 is clamped in the annular groove 19 to seal through the annular boss 20.

The thickness of the bottom of the second outer skirt part 6 is smaller than that of the upper part of the second outer skirt part , and the bottom of the second outer skirt part 6 is named as the knocking part 16. The thickness of the knocking part 16 is smaller than that of other parts of the second outer skirt part 6 so that there is sufficient acting force applied to the crackable part 10 when pressing the storage cap 2 to ensure that all parts on the edge part 12, except for the thickened part 13, can be cracked by the applied pressure.

There is a cavity 18 fit to the upper part of the bottle and arranged between the first outer skirt part 5 and the second outer skirt part 6, the internal threads 17 that fit to the bottle are arranged in the first outer skirt part 5, external threads are arranged on the bottle, and the bottle is connected to the bottle cap body 1 through the threads.

During installation, additives are put into the storage cap 2, the second outer skirt part 6 is clamped into the mounting groove 8, the inside of the groove wall 9 is fit to the periphery of the second outer skirt part 6, the bottom of the groove wall 9 is positioned above the crackable part 10, the upper part of the storage cap 2 is exposed above the bottom of the step hole 7, at that time, the annular boss 20 is clamped into the annular groove so as to seal the interior of the storage cap 2 to avoid contamination of the additives. In use, the storage cap 2 is knocked downward forcibly, and the edge part 12 of the crackable part 10 is impacted by the lower end of the second outer skirt part 6; since the crackable part 10, the thickened part 13 and the second outer skirt part 6 are all made of plastic of certain elasticity, after the thickening part 13 is impacted by the knocking part 16, the thickened part 13 is squeezed to continue transferring the pressure to the thin edge part 12 of which the thickness is 0.01-0.5 mm only, so the thin edge part 12 can be cracked completely by the acting force produced by the downward displacement of the storage cap 2; after being moved downwards and abutted against the bottom of the step hole 7, the annular flange 14 stops moving, the step hole 7 plays a role in preventing the annular flange 14 from moving downwards and the thickened part 13 from being cracked by the continuous downward displacement of the annular flange 14. The additives fall into the bottle and mix with the bottled material. The thickened part 13 will not be cracked by the second outer skirt part 6 due to its greater thickness so as to ensure that the crackable part 10 can not fall into the bottle to affect the bottled material. After the crackable part 10 is impacted by the second outer skirt part 6, the annular flange 14 is clamped into the step hole 7 so as to make the bottle cap body 2 remain a sealed structure; when shaking the bottle, the bottled material will not leak out of the bottle cap body 1.

In a word, the above mentioned content is the optimal embodiment of the invention. All equivalent changes and modifications made according to the claims of the invention shall belong to the scope of the invention. 

What is claimed is:
 1. A bottle cap with additive supply structure, which comprises a bottle cap body (1), is characterized by: the bottle cap also comprises a storage cap (2) connected to the bottle cap body (1) which comprises a first top (3) and a first outer skirt part (5) arranged at the lower end of the first top (3); a mounting groove (8) used for installing the storage cap (2) is arranged at the lower end of the first top (3) and comprises a grooved wall (9) arranged at the lower end of the first top (3) and a crackable part (10) arranged at the bottom of a grooved wall (9), and the crackable part (10) and the grooved wall (9) are an integrated structure; the storage cap (2) comprises a second top (4) and a second outer skirt part second outer skirt part (6) arranged at the lower end of a second top (4), and is installed in a mounting groove (8); the second top (4), the second outer skirt part second outer skirt part (6) and the crackable part (10) form a sealed storage space (15).
 2. The bottle cap with additive supply structure according to claim 1, characterized in that the crackable part (10) comprises a middle part (11) and an edge part (12) close to the grooved wall (9); the thickness of the edge part (12) is smaller than that of the middle part (11).
 3. The bottle cap with additive supply structure according to claim 1, characterized in that the thickness of the edge part (12) is between 0.01-0.5 mm.
 4. The bottle cap with additive supply structure according to claim 1, characterized in that the edge part (12) is provided with a thickening part (13) which is an integrated structure with the edge part (12) and the middle part (11).
 5. The bottle cap with additive supply structure according to claim 1, characterized in that an annular groove (19) is arranged in the groove wall (9), the second outer skirt part (6) is provided with an annular boss (20) at the position corresponding to the annular groove (19), and the storage space (15) is clamped in the annular groove (19) to seal with the annular boss (20).
 6. The bottle cap with additive supply structure according to claim 1, characterized in that the first top (3) is provided with a step hole (7) of which the diameter is larger than that of the mounting groove (8); the mounting groove (8) is communicated with the step hole (7), and the periphery of the second top (4) is provided with an annular flange (14) fit to the step hole (7). 